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How to check if one of the following items is in a list?
...es writing a function to accomplish this, is the any short way to check if one of multiple items is in a list.
14 Answers
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R apply function with multiple parameters
...
Just pass var2 as an extra argument to one of the apply functions.
mylist <- list(a=1,b=2,c=3)
myfxn <- function(var1,var2){
var1*var2
}
var2 <- 2
sapply(mylist,myfxn,var2=var2)
This passes the same var2 to every call of myfxn. If instead you want ...
Why does the default parameterless constructor go away when you create one with parameters
...when you create a constructor taking parameters, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
...
is there a css hack for safari only NOT chrome?
... (MacBook/IPad/etc... with both browser and OS version numbers!)
Claiming none of these work is not accurate (and actually not even possible.) Many of these are not really 'hacks' but code built into versions of Safari by Apple. More info is needed. I love the fact that you came here, and really wan...
jQuery see if any or no checkboxes are selected
... this
if ($("#formID input:checkbox:checked").length > 0)
{
// any one is checked
}
else
{
// none is checked
}
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What is “entropy and information gain”?
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I assume entropy was mentioned in the context of building decision trees.
To illustrate, imagine the task of learning to classify first-names into male/female groups. That is given a list of names each labeled with either m or f, we want to learn a m...
Is nested function a good approach when required by only one function? [closed]
... Nice answer but where is the question? Not here. OP asked whether one can do the above if method_b is only used by method_a. He did not ask anything else. No closure.
– Mayou36
Jul 26 '17 at 19:40
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Comparing two dictionaries and checking how many (key, value) pairs are equal
... 3)), (('c', 3), ('b', 2)), (('b', 2), ('d', 4))]
The difference is only one item, but your algorithm will see that all items are different
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Sibling package imports
...tempted to handle imports in a more rational way but Guido has rejected it one the account of
The only use case seems to be running scripts that happen
to be living inside a module's directory, which I've always seen as an
antipattern.
(here)
Though, I use this pattern on a regular basis ...
What is the optimal Jewish toenail cutting algorithm?
...ust make the machine remember which sequence it used last and use a random one (but not the same one) next. That works for the second foot as well as for new clients and it is more random than sticking with 4 sequences.
– Jakob
Oct 15 '11 at 7:36
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